Bump mypy from 0.921 to 0.930 (#11)

dependabot[bot] · web-flow · commit 3c0fda71c35a · 2021-12-23T10:12:27.000Z
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,3 +1,3 @@
 coverage[toml]==6.2
 flake8==4.0.1
-mypy==0.921
+mypy==0.930
